tractor disc harrow with hydraulicThe machine is suitable for cleaning crop residues before tillage on the virgin land and heavy clay soil and crushing clods after tillage. On the cultivated land, it can be used as the plough for the initial cultivation, however on the uncultivated land , the first harrowing depth can be up to 180mm. After harrowing, the land surface is smooth , the soil clods and crop residues are well crushed. It is easy to be mounted and adjusted, free to reverse , and convenient for transportation.